[MacPorts] #61736: qt5 clears configure.sdkroot which causes erroneous "SDK does not appear to be installed" warning (was: Base BigSur 2.6.4 : Warning: The macOS 11.0 SDK does not appear to be installed. Ports may not build correctly.)

[MacPorts]

#61736: qt5 clears configure.sdkroot which causes erroneous "SDK does not appear to
be installed" warning
---------------------------+---------------------------------
  Reporter:  cbitterfield  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.4
Resolution:                |   Keywords:
      Port:  qt5           |
---------------------------+---------------------------------
Changes (by ryandesign):

 * status:  new => assigned
 * owner:  (none) => MarcusCalhoun-Lopez
 * component:  base => ports
 * port:   => qt5


Comment:

 Replying to [ticket:61736 cbitterfield]:
 > {{{
 > Warning: The macOS 11.0 SDK does not appear to be installed. Ports may
 not build correctly.
 > }}}

 The qt5 port causes this message to be displayed erroneously, by clearing
 the variable `configure.sdkroot`. MacPorts base did not expect any ports
 to do that, and the port probably should not do that. You can ignore that
 message for now when it comes from the qt5 port.

 The actual build failure in your log is:

 {{{
 :info:build Sorry, "moc" cannot be run on this version of macOS. Qt
 requires macOS 11.0.0 or later, you have macOS 10.16.0.
 }}}

 That's covered by #61103.

-- 
Ticket URL: <https://trac.macports.org/ticket/61736#comment:1>
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